Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much time will the tank be filled ?

M4maths Previous Puzzles

24 Aug 2021 Taps Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much time will the tank be filled ?: OPtion
1) 4hrs 18min
2) 10min 12min
3) 2hrs 13min
4) 12hrs 10min
5) 08hrs 14min
6) 11hrs 10min
7) 18 hrs
8) 07hrs 26min
9) 6hrs 22min
10) None of the above; Correct Option: 3 Best Solution (6)

Billal Hossain 3 years AGO

Let, Two taps are A and B

A can be filled in 1 hour = 1/4 tank
B can be filled in 1 hour= 1/5 tank
Therefore, both taps can be filled in 1 hour = (1/4)+(1/5)
= (4+5)/20
=9/20
So, the tank can be filled= 20/9 hours
= 2 hours 13 minutes
Hence, My option is (3)

Like? Yes | No

Varun 3 years AGO

Fill per hour = (1/4+1/5) = 0.45
To fill 1 full it takes 1/0.45 = 9/20
So it needs 20/9 hours = 2 hours + 2/9 hours
Equivalent to 2 hours 13 minute

Like? Yes | No

Devendra Marghade 3 years AGO

In 1 hour, part of the tank filled=1/4 + 1/5=9/20
Therefore, time taken=20/9 hrs=2 hrs, 13 min
Option 3)

Like? Yes | No

RAMADURAI NATESAN 3 years AGO

with both taps ,in 1hour, 1/4 + 1/5 = 9/20 of tank is filled.
time to fill full tank = 20/9 hours = 2hours 13m

Like? Yes | No

MANISHA JADHAV 3 years AGO

let tap A and tap B re two tap
tap A fill the tank in 4 hour and tap B FILL THE TANK IN 5 HOURS
if both tap opened then tank in 1 hours =1/4+1/5=9/20
tank full in 20/9 hour
=2 hours and 13 min

Like? Yes | No

Malika gulati 3 years AGO

Tap 1 one hour work=1/4
Tap 2 one hour work=1/5
Tap 1 and Tap 2 together one hour work=1/4 + 1/5= 9/20

Tap1 and Tap 2 can together fill the tank in 20/9 hrs i.e. 2 hr 13 min.

Like? Yes | No

Dimple

India

Punjab

Time: 00:01:33

Points

Maths Quotes

I was x years old in the year x^2. (when asked his age.)

Augustus de Morgan

Language is remarkable, except under the extreme constraints of mathematics and logic, it never can talk only about what it's supposed to talk about but is always spreading around.

Raju Sharma

Placed User Comments

M4Math helped me a lot.

Vipul Chavan 4 years ago

Thanks m4 maths for helping to get placed in several companies.
I must recommend this website for placement preparations.

yash mittal 5 years ago

Two taps can fill a tank in 4 hours and 5 hours .If two taps are operate simultaneously, In how much

M4maths Previous Puzzles

24 Aug 2021 Taps